Latch for sliding doors



Dec. 25, 1928.

P. P. wEL-r Y LATCH FOR SLIDING DOORS Original Filed Feb. 17, 1928 I? Z. n; a w "ugh w I wuenkw Refer Patented Dec. 25, 1928.

UNITED, STATES PATENT OFFICE.

PETER P. WELTY, OF YANDOR'A, OHIO.

LATCH r03 SLIDING DOORS.

Application filed February 17, 1928. 'SeriaI No. 255,077.

This invention relates to improvements in latches for sliding doors, one object of the invention being the provision of a. device of this character which is especially designed for use upon garage and barn doors and which is of a type thatis provided with a latching member actuated during the rotation of the carrying member to be moved toward and within the door during the unlatching action and to be moved away from and into latch-engaging position when the door is closed and being latched.

Another object ofthis invention is the provision of a device of this character which can be made universal, that is, so that it can be operated rightor left-handed, and which is easily assembled and put into operation upon the present type of garage and barn doors.

In the accompanying drawings Figure 1 is a horizontal section through the door frame and a door with the present device in the position it assumes when latched, the said device being viewed, from above;

Figure 2 is a front elevation or view taken from the outer side of the door with the device latched;

Figure 3 is a view similar to Figure 1 with the device in unlatched position; I

Figure 4 is a detail view of the latch-engaging member; and

Figure 5 is a plan view of the double cam plate.

Referring to the drawings, the numeral 7 designates the door frameor post and 8 the door, said door being provided with the batten 8 which, as will presently appear, provides a receptacle for the present device when in unlatched position.

Attached to the outer face of the door is a plate 9 which is provided with the sleeve or seated in the door 8 and be attached thereto by means of the screws 11. A stem 12 is mounted in the member 10 for both rotary and longitudinal movement, the same being provided with the operating handle 13 which is disposed upon the plate side and having an apertured terminal end 14, the purpose of which will presently appear. Detachably connected to the inner end of the stem 12 is the double latch member 15, the same being so constructed that the set screw 16may fasten the same in position to be operated either as a right-hand or as a left-hand device, that is, as illustrated, the device is a lefthand latch due to the fact that the handle 13 is in the left-hand position, but if it were to be operated as a. right-hand latch, it would be moved to a position at 180 from the point as illustrated, and the latch member 15 would be, released and latched so as to assume the same position as that in which it now appears, ex cept that its engaging coacting member would be disposed to engage the hook terminal 17 instead of the illustrated.

A spring 18 surrounds the stem 12 and abuts the bushing 10 and the latch member 15 so as to normally hold the same in the position as shown in Figure 1 with the arm;

13 riding in the lowermost portion ofthe plate 9. This plate 9, as shown, is provided with the two inclined cam raised portions 19 and 19' so that when the lever 13 ismoved upwardly and to the right, as viewed in Figure 2, thesame will ride upon the cam surface 19, and during such movement, the stem 12 will be rotated and also moved longitudi- 1 nally downwardly, as viewed in Figure 1, so as to elevate the hook 17 and draw the mem- I device is used as a right-hand device to limit it in its extreme left-hand movement. 7

The coacting hook-receiving or latch plate 21 is attached by screws 22 to the inner face of .the frame 7 so that its apertured abutment 23is disposed to be engaged by either one of the hooks 17 or 17, here shown as being engaged by a hook 17 when the door is latched and the parts assume the position as shown in cylindrical boss 10 which is adapted to be p 21 is so shaped as to be placed upon the right- Figure 1 It will be noted that this member securing the same and for holding the plate so that the upstanding lug 26 will be in the path to receive the apertured terminal 14 of the lever 13 so that a padlock (not shown) may be inserted in theopening 27 thereof to lock the lever against upward displacement.

From the foregoing description, it is eviterminal 17 as now. I

latter when dent that with a device of this character a proper latching device is provided for sliding barn and garage doors and one in which when the lever 13 is moved in one direction the latch member 15 is rotated so as to disengage one of its hookierminals from the plate 21, and after such disengagement, the action of the cams 19 and 19 will cause the stem 12 to be ope ated against the spring 18 so that the member 15 is seated. within the outer face of the batten 18" and thus in a position where it will not protrude and provide an abutment that will be in the way when the door is slid in the desired direction for opening and closing. It is also evident that when the lever is moved in the opposite direction, the member 15 will be moved both longitudinally and rotatively so that the hook terminals l7, 17 will be brought into latching position, as shown in Figure 1..

It is also evident that the latch can be operated from the inside, and that the complete device can be used on swinging as well as sliding doors, the metal parts being made of any desirable metal.

I claim 1.. The combination with a door frame and a door, said door being provided with a recess upon the face side thereof, of a latch device therefor including a member carried by the door and capable of rotary-and longi tudinal movement, a. latch member carried upon the inner end of the same and adapted when in latching relation to be projected beyond and out ofthe recess, and when in released position to be seated within the recess, means attached to the frame for engaging the latter when external of the recess, and means externally of the door for operating the rotary member.

2. The combination with a door frame and a door, said door being provided with a recess upon the frame side thereof, of a latch device therefor including a member carried by the door and capable of rotary and longitudinal movement, a latch member carried upon the inner end of the same and adapted when in latching relation to be projected beyond and out of the recess, and when in released position to be seated within the recess, means attached to the frame for engaging the :ernal of the recess, means e2;- ternally of the door for operating the rotary member, and a spring; for normally holding the latter member extended.

3. The combination with. a door frame and a door, said door being provided with a recess upon the frame side thereof, of a latch device therefor including a member carried by the door and capable of rotary and longitudinal movement, a latch member carried upon the inner end of the same and adapted when in latching relation to be projected beyond and out of the recess, and when in released position to be seated within the recess, means attached to the frame for engaging the latter when external of the recess, means externally of the door for operating the rotary member, a spring for normally holding the latter member extended, and cooperating means carried by the rotary member and in the path thereof to impart longitudinal movement to the rotary member during); the rotation of the same.

4- A latch for sliding doors, including a plate having a c ammed surface upon the outer face thereof and provided with a concentric aperture, a substantially L-shaped member, one terminal of which forms the stem and which is mounted forlongitudinal sliding and rotary movement in the. aperture of'the plate, the opposite terminal being disposed to engage the cam to impart sliding movement to the stem during the rotation of the stem, a spring mounted upon. the stem and normally holding the operating terminaltoward the cam, and a right-angled latching member carried upon the free end of the stem.

5. A latch for sliding doors, including a plate having a c/ammedl surface upon the outer face thereof and provided with a concentric aperture, a substantially L-shaped member, one terminal of which forms: the stem and which is mounted for longitudinal sliding and rotary movement in the aperture of the plate, the opposite terminal being disposed to engage the cam. to impart sliding movement to the stem during the rotation of the stem, a spring mounted upon. the stem and normally holding the operating terminal toward the cam, a rightangled latching; member carried upon the free end of the stem, and means carried by the. plate for limiting the rotary movement of the stem.

6. A latch for sliding doors, including a plate having a cammed surface upon the outer face thereof and provided with a concentric aperture, a substantially 1..-shaped member. one terminal of which forms the stem and which is mounted for longitudinal sliding);

of the stem, the operating end of the stem be ing apertured, and a padlock-receiving member disposed in fixed relation thereto for receiving the same when the stem 1s in latched I position.

In testimony whereof I have hereunto set my hand.

PETER P. WELTY, 

